ASTROSAT CZTI

Data Quality Report

Orbit 03241

Creation date: 2024-06-27T14:26:37.571145
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1G05_104T01_9000000440_03241cztM0_level2.evt modeM0/AS1G05_104T01_9000000440_03241cztM0_level2_quad_clean.evt
Size (bytes)466,536,96088,539,840
Size444.9 MB 84.4 MB
Events in quadrant A3,072,985562,668
Events in quadrant B3,753,507571,572
Events in quadrant C3,299,469560,527
Events in quadrant D3,558,295529,715

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136143
B0154822
C0141512
D0152642

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6553270.412025%
B6553540.824050%
C6553821.251335%
D6553841.281856%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7808 6554 12 12 0.15% 0.18%
B 7808 6554 13 13 0.17% 0.20%
C 7808 6554 26 26 0.33% 0.40%
D 7808 6554 69 69 0.88% 1.05%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 0 118 80083 505.97 766 753 156.8
A 0 50 24896 153.99 766 753 156.8
A 0 226 16032 97.45 766 753 156.8
B 15 204 559193 3758.17 789 771 148.6
B 5 200 63252 420.5 789 771 148.6
B 2 249 33798 222.27 789 771 148.6
C 14 223 195684 1112.97 754 760 175.1
C 6 80 91200 516.39 754 760 175.1
C 15 208 34541 192.88 754 760 175.1
D 13 223 330056 1849.48 737 718 178.1
D 13 239 201950 1130.07 737 718 178.1
D 13 114 167741 937.96 737 718 178.1

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter